github-mirrors/neorv32
1
0
Fork 0
mirror of https://github.com/stnolting/neorv32.git synced 2025-04-23 21:57:33 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

added external memory interface test

Browse source
This commit is contained in:
stnolting 2020-10-05 19:36:20 +02:00
parent 3492ed77ab
commit 06c9fa81ba
1 changed files with 54 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

60
sw/example/cpu_test/main.c
View file

@ -40,6 +40,7 @@
**************************************************************************/
#include <neorv32.h>
#include <string.h>
/**********************************************************************//**
@ -52,10 +53,14 @@
#define DETAILED_EXCEPTION_DEBUG 0
//** Set 1 to run memory tests */
#define PROBING_MEM_TEST 0
//** Set 1 to run external memory test */
#define EXT_MEM_TEST 1
//** Reachable unaligned address */
#define ADDR_UNALIGNED 0x00000002
//** Unreachable aligned address */
#define ADDR_UNREACHABLE 0xFFFFFF00
//* external memory base address */
#define EXT_MEM_BASE 0xF0000000
/**@}*/
@ -198,7 +203,7 @@ int main() {
// Instruction memory test
// ----------------------------------------------------------
exception_handler_answer = 0xFFFFFFFF;
neorv32_uart_printf("IMEM_TEST: ");
neorv32_uart_printf("IMEM TEST: ");
#if (PROBING_MEM_TEST == 1)
cnt_test++;
@ -214,9 +219,9 @@ int main() {
dmem_probe_cnt++;
}
neorv32_uart_printf("%u bytes (should be %u bytes) ", dmem_probe_cnt, SYSINFO_ISPACE_SIZE);
neorv32_uart_printf("%u bytes (should be %u bytes) ", dmem_probe_cnt, SYSINFO_IMEM_SIZE);
neorv32_uart_printf("@ 0x%x ", SYSINFO_ISPACE_BASE);
if (dmem_probe_cnt == SYSINFO_ISPACE_SIZE) {
if (dmem_probe_cnt == SYSINFO_IMEM_SIZE) {
test_ok();
}
else {
@ -231,7 +236,7 @@ int main() {
// Data memory test
// ----------------------------------------------------------
exception_handler_answer = 0xFFFFFFFF;
neorv32_uart_printf("DMEM_TEST: ");
neorv32_uart_printf("DMEM TEST: ");
#if (PROBING_MEM_TEST == 1)
cnt_test++;
@ -247,9 +252,9 @@ int main() {
imem_probe_cnt++;
}
neorv32_uart_printf("%u bytes (should be %u bytes) ", imem_probe_cnt, SYSINFO_DSPACE_SIZE);
neorv32_uart_printf("%u bytes (should be %u bytes) ", imem_probe_cnt, SYSINFO_DMEM_SIZE);
neorv32_uart_printf("@ 0x%x ", SYSINFO_DSPACE_BASE);
if (imem_probe_cnt == SYSINFO_DSPACE_SIZE) {
if (imem_probe_cnt == SYSINFO_DMEM_SIZE) {
test_ok();
}
else {
@ -260,6 +265,49 @@ int main() {
#endif
// ----------------------------------------------------------
// External memory interface test
// ----------------------------------------------------------
exception_handler_answer = 0xFFFFFFFF;
neorv32_uart_printf("EXT_MEM TEST: ");
#if (EXT_MEM_TEST == 1)
cnt_test++;
// create test program in RAM
static const uint32_t dummy_ext_program[2] __attribute__((aligned(8))) = {
0x3407D073, // csrwi mscratch, 15
0x00008067 // ret (32-bit)
};
// copy to external memory
if (memcpy((void*)EXT_MEM_BASE, (void*)&dummy_ext_program, (size_t)sizeof(dummy_ext_program)) == NULL) {
test_fail();
}
else {
// execute program
tmp_a = (uint32_t)EXT_MEM_BASE; // call the dummy sub program
asm volatile ("jalr ra, %[input_i]" : : [input_i] "r" (tmp_a));
#if (DETAILED_EXCEPTION_DEBUG==0)
if (exception_handler_answer == 0xFFFFFFFF) { // make sure there was no exception
if (neorv32_cpu_csr_read(CSR_MSCRATCH) == 15) { // make sure the program was executed in the right way
test_ok();
}
else {
test_fail();
}
}
else {
test_fail();
}
#endif
}
#else
neorv32_uart_printf("skipped (disabled)\n");
#endif
// ----------------------------------------------------------
// Test time[h] (must be == MTIME)
// ----------------------------------------------------------